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hypothyroidism

[hahy-puh-thahy-roi-diz-uh m] /ˌhaɪ pəˈθaɪ rɔɪˌdɪz əm/
noun, Pathology
1.
deficient activity of the thyroid gland.
2.
the condition produced by a deficiency of thyroid secretion, resulting in goiter, myxedema, and, in children, cretinism.
Origin
1900-1905
1900-05; hypo- + thyroid + -ism
Related forms
hypothyroid, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hypothyroid

hypothyroidism

/ˌhaɪpəʊˈθaɪrɔɪˌdɪzəm/
noun (pathol)
1.
insufficient production of thyroid hormones by the thyroid gland
2.
any disorder, such as cretinism or myxoedema, resulting from this
Derived Forms
hypothyroid, noun, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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hypothyroid in Medicine

hypothyroid hy·po·thy·roid (hī'pō-thī'roid')
adj.
Affected by or manifesting hypothyroidism.

hypothyroidism hy·po·thy·roid·ism (hī'pō-thī'roi-dĭz'əm)
n.

  1. Insufficient production of thyroid hormones.

  2. A pathological condition resulting from thyroid insufficiency, which may lead to cretinism or myxedema.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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hypothyroid in Science
hypothyroidism
  (hī'pō-thī'roi-dĭz'əm)   
An abnormality of the thyroid gland characterized by insufficient production of thyroid hormone, which can result in a decreased basal metabolic rate, causing weight gain and fatigue. Compare hyperthyroidism.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for hypothyroid

hypothyroidism

a deficiency in hormone production by the thyroid gland.

Learn more about hypothyroidism with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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